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AIC1630CS Datasheet(PDF) 6 Page - Analog Intergrations Corporation

Part # AIC1630CS
Description  2-Cell, Step-Up DC/DC Converter Controller
PDF  11 Pages
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Manufacturer  AIC [Analog Intergrations Corporation]
Direct Link  http://www.analog.com.tw
Logo AIC - Analog Intergrations Corporation

AIC1630CS Datasheet(HTML) 6 Page - Analog Intergrations Corporation

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AIC1630
6
PIN DESCRIPTION
AIC1630/ AIC1630-3 / AIC1630-5
PIN 1: SD
- The AIC1630 goes in shutdown
mode and consumes less than
10
µA when SD pin is pulled to
ground and it goes in normal
operating mode when the SD pin
is pulled to a positive voltage
above 100mV.
PIN 2: VIN
- Input supply.
PIN 3: EXT
- Push-pull drive output to drive
external power switch.
PIN 4:SGND - Ground connected to source of
power switch.
PIN 5:CGND - Ground for control circuits of the
IC. It should be separated from
SGND to avoid the interference.
PIN 6:LBO
- Open drain output of the battery
low detector, with 45
Ω “ON
resistance” at V
IN=2V. It is pulled
low when the voltage on LBI pin
is below 1.22V.
PIN 7:LBI
- The noninverting input of the
battery low detector, of which the
inverting
input
is
internally
connects
to
1.22V
voltage
reference.
PIN 8:VOUT - The output voltage feedbacks to
the IC through this pin.
AIC1630A
PIN 1: SD
- The AIC1630A goes in shutdown
mode and consumes less than 10
µA when SD pin is pulled to
ground and it goes in normal
operating mode when the SD pin
is pulled to a positive voltage
above 100mV.
PIN 2: VIN
- Input supply.
PIN 3: EXT - Push-pull drive output to drive
external power switch.
PIN 4: GND - Ground.
PIN 5: FB
- Output voltage can either be
internally
set
to
5
volt
by
grounding FB pin, or be externally
set to an arbitrary voltage by
applying to FB pin the divider
voltage of two divider resistors.
V
OUT
voltage is given by the
following equation:
1
0.617
V
R2
R1
OUT −
=
where R1 = Resistor
connected
between FB pin and VOUT pin.
R2= Resistor connected between
FB pin and ground.
V
OUT=Output voltage to be set.
PIN 6: LBO - Open drain output of the battery
low detector,
with 45
Ω “ON
resistance” at V
IN=2V. It is pulled
low when the voltage on LBI pin is
below 1.22V.
PIN 7: LBI
- The noninverting input of the
battery low detector, of which the
inverting
input
is
internally
connects
to
1.22V
voltage
reference.
PIN 8: VOUT- The output voltage feedbacks to
the IC through this pin. If output
voltage was externally set, the
VOUT pin can be tied to any low
impedance node with voltage
between the external power switch
threshold and 7V



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